Test Sessions The Volunteer Examiners of the Dial Radio Club of Middletown and the Butler County VHF Association have joined forces to provide test sessions each and every month. The Butler County VHF Association test session is held on the second Saturday of the month and begins at 8 A.M. in Room 127 Butler Tech/D.Russell Lee school 3603 Hamilton Middletown Road in Hamilton, OH. Butler County VHF Association test sessions will be on the Even Numbered Months: January, March, May, September and November. The Dial Radio Club of Middletown test sessions will be held on the Odd Numbered Months: February, April, August, October and December. Please check the link below for date, time and location for the Dial test session.